the act of doing a dance while having diarrhea making you dance then dance again before finally shitting your pants. the actual shitting of your pants can vary it might be a little squeaker or it could be a full blown explosive black out diarrhea if this is the case the police might be after you because you most likely just killed who ever was in the room with you with your explosive, flammable diarrhea. The actual shitting of your pants is due to the dancing that had been happening earlier. Symptoms that dance dance shit your pants (DDSYP) is about to happen are: nausea, dancing with no control of your limbs, and a numb feeling in your lower extremities. A clear sign that the DDSYP is black out diarrhea is if start to spin uncontrollably, this due to the propulsion of the diarrhea. If you feel DDSYP coming on while at a club, highly populated party or family reunion get out of there because it will not end well.

(at a party)
Person 1: man i'm dancing with no control of my limbs and a numb feeling around my lower extremities
Person 2: are you spinning on your own?
Person 1: no it's uncontrollable
Person 2: OMG EVACUATE THE BUILDING THIS MAN HAS DANCE DANCE SHIT YOUR PANTS! LEAVE THE WEAK AND SMALL! EVERYBODY OUT!!!!!
Person 1: it's too late
(everyone dies)